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android_sharedperences icon android_sharedperences

a)程序主界面如图一,要求用户名输入框有自动提示功能(也就是输入过程中能 够自动提示与我们输入内容相关的内容,以供选择),提示相关内容不能重复 (不能出现相同名字提示)。此外,要求退出程序后重新进入程序,自动提 示效果依然存在。( tips: 使用 AutoCompleteTextView 控件实现自动提示效 果;使用 SharedPreferences 记录输入过的信息。当然只有点击了插入按钮,输 入的信息才需要记录下来。) b) 在用户名和密码输入框输入之后,点击插入按钮,可以将键-值对保存到已经 建立好的 xml 文件中,如果出现相同用户名,后者覆盖前者; c) 输入用户名,点击查询按钮,读取与该用户名匹配的键值对。 d)输入用户名,点击删除按钮,删除与该用户名匹配的键值对。 e)点击清空按钮,清空所有插入的用户名和密码。 d) 自定义路径读取: 点击自定义读取文件按钮, 进入读取文件选择框, 选定文件并进行读取,其中点击文件夹进入子文件夹,点击文件返回到主界 面,且读取文件到“文件内容”框中。

blackbox icon blackbox

BlackBox is a virtual engine, it can clone and run virtual application on Android, users don't have to install APK file to run the application on devices. BlackBox control all virtual applications, so you can do anything you want by using BlackBox.

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